js内置对象处理_打印学生成绩单的简单实现

var date=new Date();var year=date.toString().slice(11,15);document.write(year.toString()+"年");var month=date.getMonth();month=month+1;if(month<10){document.write("0"+month+"月");}else{document.write(month+"月"); }var day=date.toString().slice(8,10);document.write(day+"日 ");var weekday=["日","一","二","三","四","五","六"];var week=date.getDay();document.write("星期"+weekday[week]);

var scoreStr = "小明:87;小花:81;小红:97;小天:76;小张:74;小小:94;小西:90;小伍:76;小迪:64;小曼:76";var scoreArr=scoreStr.split(";");

function getNum(str){var str1=str.replace(/[*0-9]/ig,"");return str.replace(str1,"");} var num=0, len=scoreArr.length;for(var i=0;i<len;i++){var num1=getNum(scoreArr[i]);num+=Number(num1);}num=parseInt(num/len);document.write("--班级平均分为:"+num);